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Finding the Fourth Proportional to 183,791.10, 253,620.12 and 103,216.55

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Solution

The fourth proportional to 183,791.10, 253,620.12 and 103,216.55 is: 142,432.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,791.10 : 253,620.12 = 103,216.55 : x
  2. Step 2: Convert to fraction form
    183,791.10/253,620.12 = 103,216.55/x
  3. Step 3: Cross multiply
    183,791.10x = 253,620.12 × 103,216.55
  4. Step 4: Simplify right side
    183,791.10x = 26,177,793,796.99
  5. Step 5: Solve for x
    x = 26,177,793,796.99/183,791.10
  6. Step 6: Final answer
    x = 142,432.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.